Traditional VPNs were designed around a simple model: authenticate once, then trust the connection to reach broadly across the internal network. That model has become a liability as remote and hybrid work expanded the population of devices and locations connecting in, since a single compromised VPN credential can grant an attacker the same broad reach as a legitimate employee.
Access scoped to the application, not the network
Zero trust network access flips this model: rather than placing a user on the network, it brokers access to specific applications after evaluating identity, device posture, and context for every request. Users never gain visibility into network segments beyond the application they are authorized to use, which sharply limits what an attacker can reach even after a successful credential compromise.
Migration should be staged by application criticality, starting with the most sensitive systems where VPN’s broad access represents the greatest risk, while planning to fully retire legacy VPN infrastructure rather than running both indefinitely.
JIG helps enterprises transition from broad-access VPNs to ZTNA architectures that materially reduce the blast radius of a compromised credential.